<!DOCTYPE html>
<html lang="zh">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>animation属性演示</title>
    <style>
    @keyframes slide {
        from {
            left: 0;
            top: 0;
        }
        50% {
            left: 50%;
            top: 50%;
        }
        to {
            left: calc(100% - 50px);
            top: 0;
        }
    }

    .stage {
        background: #ccc;
        border-radius: 6px;
        height: 150px;
        position: relative;
        width: 500px;
    }

    .stage:hover .ball {
        animation: slide 2s linear;
    }

    .ball {
        background: #2db34a;
        border-radius: 50%;
        height: 50px;
        position: absolute;
        width: 50px;
        margin: 0;
    }
    </style>
</head>

<body>
    <div class="stage">
        <figure class="ball"></figure>
    </div>
</body>

</html>
